Drawing machine for fiber production

Abstract

The utility model belongs to the technical field of chemical fiber production equipment, and particularly relates to a drawing machine for fiber production. The traction and compression roller set is fixed to one side of the rack, the traction and compression roller set comprises a protection frame fixedly connected to the rack and a two-way lead screw rotationally connected to the protection frame, and the two-way lead screw is in threaded connection with two symmetrically-distributed telescopic plates. The sliding block arranged on one side of the traction and compression roller body is connected to the rail groove of the protection frame in a sliding mode, the bidirectional lead screw is rotationally connected to the protection frame, the bidirectional lead screw can drive the two telescopic plates to move in the opposite direction when rotating, then the elastic force of the spring between the telescopic plates and the sliding block is adjusted, and adjustment of the pressing force of the traction and compression roller body is achieved; meanwhile, after adjustment, the traction and compression roller body can elastically stretch out and draw back, fiber yarn damage is avoided, and the problems that at the present stage, the pressing force of the traction and compression roller body is inconvenient to adjust, and fiber yarn damage is likely to be caused after adjustment are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical fiber production equipment, in particular to a drafting machine for fiber production. Background Art

[0002] The drawing machine is one of the main equipment for post-spinning processing. Its function is to apply axial external force to the yarn bundle under certain conditions, to thin the single fibers (or nylon fibers) in the yarn bundle, to improve the orientation degree, and to change the single fibers from a low-strength, high-elongation plastic state to a high-strength, low-elongation elastic state.

[0003] After searching, the patent number CN201921174258.8 discloses a pre-stretching machine for the production of high-strength and high-modulus polyethylene fibers. This solution sets a retractable first pulling and pressing roller, and then adjusts the distance between the two pulling and pressing rollers to achieve the adjustment of the pressing force, so as to meet the drawing use of different types of fibers. The pressing force can also be adjusted in this way to avoid being too loose or too tight. However, this solution has certain defects and shortcomings when used. First, the distance between the two pulling and pressing rollers is directly adjusted. Although this method can achieve the adjustment of the pressing force, the pulling and pressing rollers cannot be elastically stretched after the position is adjusted. The distance between the two pulling and pressing rollers is fixed. If the distance is not properly controlled, it will cause fiber damage. In addition, this method makes the friction between the pulling and pressing rollers and the fibers greater, which can easily cause fiber wear and breakage, which is not conducive to stable fiber processing. Therefore, the utility model proposes a pulling and pressing machine for fiber production to solve this problem. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies in the prior art, the utility model provides a drawing machine for fiber production, which achieves this by sliding a sliding block provided on one side of the drawing roller body in a track groove of a protective frame, and rotatably connecting a bidirectional screw rod to the protective frame. When the bidirectional screw rod rotates, it can drive the two telescopic plates to move toward each other, and then adjust the elastic force of the spring between the telescopic plates and the sliding block to achieve the adjustment of the clamping force of the drawing roller body. At the same time, after the adjustment, the drawing roller body can be elastically extended and contracted without causing damage to the fiber filaments, thereby solving the problem that the clamping force of the drawing roller body of the current device is inconvenient to adjust, and the problem that the fiber filaments are easily damaged after the adjustment.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A drafting machine for fiber production, comprising:

[0009] frame;

[0010] The traction and pressure roller group is fixed to one side of the frame, and the traction and pressure roller group includes a protective frame fixedly connected to the frame, and a bidirectional screw rod rotatably connected to the protective frame, the bidirectional screw rod is threaded with two symmetrically distributed telescopic plates, and a track groove is provided on the side of the protective frame close to the bidirectional screw rod, and two symmetrically distributed sliding blocks are slidably connected to the track groove of the protective frame, and the traction and pressure roller bodies are rotatably connected to the rotating seats provided on one side of the two sliding blocks, and a spring is fixedly connected between the telescopic plate and the adjacent sliding block. When the bidirectional screw rod rotates, the telescopic plate can be driven to move, and then the elastic force of the spring is adjusted to realize the adjustment of the pressing force of the traction and pressure roller body.

[0011] Furthermore, one side of the sliding block and one side of the telescopic plate are both integrally formed with a limiting protrusion, and the limiting protrusion is adapted to the track groove of the protective frame.

[0012] Furthermore, the sliding block is provided with a clearance hole at a position corresponding to the bidirectional screw rod, and the telescopic plate is provided with a screw hole adapted to the external thread of the bidirectional screw rod at a position corresponding to the bidirectional screw rod.

[0013] Furthermore, a motor is installed on one side of the protective frame, and the output shaft of the motor is connected and fixed to the bidirectional screw rod.

[0014] Furthermore, a drafting roller group is installed on one side of the frame, and the drafting roller group is composed of drafting rollers distributed in an array, and the drafting rollers are rotatably connected to one side of the frame.

[0015] Furthermore, support pads are fixedly connected to the four corners of the lower surface of the frame.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a drafting machine for fiber production, which has the following beneficial effects:

[0018] The two guide wheels are connected in a direction of rotation and the two guide wheels are in a forward direction, so that the two guide wheels can be adjusted relative to each other when the two guide wheels are in a forward direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic structural diagram of the traction and pressure roller group in the utility model;

[0021] Figure 3 It is a structural diagram of the sliding block and the telescopic plate in the utility model.

[0022] In the figure: 1. Frame; 2. Drafting roller assembly; 201. Protective frame; 202. Track groove; 203. Sliding block; 204. Bidirectional screw rod; 205. Spring; 206. Telescopic plate; 207. Motor; 208. Rotating seat; 209. Drafting roller body; 2010. Clearance hole; 2011. Limiting protrusion; 2012. Screw hole; 3. Drafting roller assembly; 4. Support pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example

[0025] like Figure 1 、 Figure 2 and Figure 3As shown in the figure, a drafting machine for fiber production proposed by an embodiment of the present utility model includes: a frame 1; a drafting roller group 2 fixed to one side of the frame 1. The drafting roller group 2 includes a protective frame 201 fixedly connected to the frame 1, and a bidirectional lead screw 204 rotatably connected to the protective frame 201. Two symmetrically distributed telescopic plates 206 are threadedly connected to the bidirectional lead screw 204. Moreover, a track groove 202 is formed on one side of the protective frame 201 close to the bidirectional lead screw 204. Two symmetrically distributed sliding blocks 203 are slidably connected to the track groove 202 of the protective frame 201. Drafting roller bodies 209 are rotatably connected to the rotary seats 208 provided on one side of the two sliding blocks 203. A spring 205 is fixedly connected between the telescopic plate 206 and the adjacent sliding block 203. When the bidirectional lead screw 204 rotates, it can drive the telescopic plate 206 to move, thereby adjusting the elastic force of the spring 205 and realizing the adjustment of the pressing force of the drafting roller body 209.

[0026] It should be noted that the frame 1 is the main part of the device. The drafting roller group 2 is installed on one side of the frame 1 to realize the pressing effect on the fiber filaments. The drafting roller group 2 is composed of a protective frame 201, a sliding block 203, a bidirectional lead screw 204, a spring 205, a telescopic plate 206, a rotary seat 208, a drafting roller body 209, etc. The sliding block 203 provided on one side of the drafting roller body 209 is slidably connected to the track groove 202 of the protective frame 201. And a spring 205 is provided between the sliding block 203 and the telescopic plate 206. The spring 205 is a strong spring 205. When the bidirectional lead screw 204 rotates, it can drive the two telescopic plates 206 to move towards each other, thereby compressing the spring 205, increasing the elastic force of the spring 205, and then increasing the pressing force between the two drafting roller bodies 209. When the two telescopic plates 206 move outward simultaneously, the pressing force between the drafting roller bodies 209 can be loosened, realizing the adjustment of the pressing force between the two drafting roller bodies 209. This method can realize the elastic expansion and contraction of the drafting roller body 209 and can well protect the fiber filaments.

[0027] As Figure 2 and Figure 3 shown in the figure, in some embodiments, a limiting protrusion 2011 is integrally formed on one side of the sliding block 203 and one side of the telescopic plate 206. The limiting protrusion 2011 is adapted to the track groove 202 of the protective frame 201.

[0028] It should be noted that the setting of the limiting protrusion 2011 can realize the limiting effect of the sliding block 203 and the telescopic plate 206, and realize the stable sliding of the sliding block 203 and the telescopic plate 206.

[0029] As Figure 2 and Figure 3As shown, in some embodiments, a relief hole 2010 is provided at the position of the sliding block 203 corresponding to the bidirectional lead screw 204, and a threaded hole 2012 adapted to the external thread of the bidirectional lead screw 204 is provided at the position of the telescopic plate 206 corresponding to the bidirectional lead screw 204.

[0030] It should be noted that by providing the relief hole 2010 on the sliding block 203, and the relief hole 2010 is located at the position of the bidirectional lead screw 204, the sliding block 203 is not in contact with the bidirectional lead screw 204, forming a relief function. By providing the threaded hole 2012 on the telescopic plate 206, the threaded connection between the telescopic plate 206 and the bidirectional lead screw 204 is realized, and then the telescopic plate 206 is driven to move.

[0031] As Figure 2 shown, in some embodiments, a motor 207 is installed on one side of the protective frame 201, and the output shaft of the motor 207 is fixedly connected to the bidirectional lead screw 204.

[0032] It should be noted that the motor 207 can control the rotation of the bidirectional lead screw 204 to realize the adjustment of the pressing force between the draw roll bodies 209.

[0033] As Figure 1 shown, in some embodiments, a draw roll group 3 is installed on one side of the frame 1. The draw roll group 3 is composed of draw rolls distributed in an array, and the draw rolls are rotatably connected to one side of the frame 1.

[0034] It should be noted that the fiber filaments are drawn on the draw rolls to realize the drawing and forming of the fiber filaments.

[0035] As Figure 1 shown, in some embodiments, support pads 4 are fixedly connected to the four corners of the lower surface of the frame 1 to realize the support function at the bottom of the device.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drafting machine for fiber production, characterized in that, include: Rack (1); The pulling and pressing roller group (2) is fixed to one side of the frame (1), and the pulling and pressing roller group (2) includes a protective frame (201) fixedly connected to the frame (1), and a bidirectional screw rod (204) rotatably connected to the protective frame (201), two symmetrically distributed telescopic plates (206) are threadedly connected to the bidirectional screw rod (204), and a track groove (202) is opened on the side of the protective frame (201) close to the bidirectional screw rod (204). 02) is slidably connected to two symmetrically distributed sliding blocks (203), and a pulling and pressing roller body (209) is rotatably connected to a rotating seat (208) set on one side of the two sliding blocks (203). A spring (205) is fixedly connected between the telescopic plate (206) and the adjacent sliding block (203). When the bidirectional screw rod (204) rotates, the telescopic plate (206) can be driven to move, and then the elastic force of the spring (205) can be adjusted to achieve the adjustment of the pressing force of the pulling and pressing roller body (209).

2. The drafting machine for fiber production according to claim 1, wherein: One side of the sliding block (203) and one side of the telescopic plate (206) are both integrally formed with a limiting protrusion (2011), and the limiting protrusion (2011) is adapted to fit in the track groove (202) of the protective frame (201).

3. The drafting machine for fiber production according to claim 1, characterized in that: The sliding block (203) is provided with a clearance hole (2010) corresponding to the bidirectional screw rod (204), and the telescopic plate (206) is provided with a screw hole (2012) adapted to the external thread of the bidirectional screw rod (204) corresponding to the bidirectional screw rod (204).

4. A drafting machine for fiber production according to claim 1, characterized in that: A motor (207) is installed on one side of the protection frame (201), and the output shaft of the motor (207) is connected and fixed to the bidirectional screw rod (204).

5. A drawing frame for fiber production according to claim 1, characterized in that: A drafting roller group (3) is installed on one side of the frame (1), and the drafting roller group (3) is composed of drafting rollers distributed in an array, and the drafting rollers are rotatably connected to one side of the frame (1).

6. The drawing frame for fiber production according to claim 1, wherein: Support pads (4) are fixedly connected to the four corners of the lower surface of the frame (1).

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